The attached table is a quick comparison chart.
Looking at the WC 5/6 - 365/54.5x30= 200.9 grains
365 is the head weight, in grains, of the WC
54.5 is head length in ft. of the the WC
30 is the standard head length of a single handed fly line.
An 8wt single handed line weight (industry standard, as I understand it) is 210 grains (+ or - 8 grains). So the first 30 ft of a WC is equal to 201 grains or 1 grain below the 202 min for an 8wt single.
Another way to look at is: Taking our WC 5/6 example, if you want to cast with the entire 54.5ft outside the tip of your single handed rod than the 365 grain WC is roughly equal to a 12wt single handed line.
Mfg - Line - Grains - Head Lngth(ft)- Single Equiv
- WC 5/6 - 365 - 54.5 - 8 light
- WC 6/7/8 - 455 - 54.5 - 9 wt
- WC 7/8/9 - 525 - 54.5 - 10 wt
- WC 8/9/10 - 585 - 54.5 - 11 wt
- WC 9/10/11 - 650 - 54.5 - 12 light
- WC 10/11/12 - 740 - 54.5
- WC 11/12/13 - 900 - 54.5
Hope this gives you a reference point for making your decision.
If anybody has any different stats or another way of looking at this comparison, I'd like to hear about it.